﻿namespace ConsoleApp5
{
    //属性
    internal class Program
    {
        static void Main(string[] args)
        {
        }
    }

    public class Person
    {
        public string FirstName { get; set; }
        public string LastName;
        public string LastNameValue
        {
            get
            {
                return LastName;
            }
            set
            {
                LastNameValue = value;
            }
        }

    }

}